The Protecta Membrane Barrier is designed to provide 60 minutes fire resistance to linear voids between roofing moisture membranes and roof tiles, when 
used in combination with fire classified partition walls in attic spaces, to avoid a fire spreading from one attic compartment to another, hence reducing risk 
to human and animal life and drastically reduce fire damage by containing a fire within the compartment it started. The membrane barriers are installed on 
both sides of partition walls, and includes graphite strips which expands during fire and closes the air gap between the membrane and the roof tiles. Without 
such protection, a fire might spread above the partition walls through the open air gap.

Supporting Constructions

The specific elements of the supporting construction are as follows:

Flexible Wall:

▪ The wall must have a minimum thickness of 95mm and comprise steel or timber studs lined on both faces with minimum 1 layer of 12.5 mm thick 
boards. 
▪ The wall must be classified in accordance with EN13501-2 for the required fire resistance period.

Rigid Wall:
▪ The wall must have a minimum thickness of 95mm and comprise concrete, aerated concrete or masonry, with a minimum density of 350kg/m³.
▪ The wall must be classified in accordance with EN13501-2 for the required fire resistance period.

FR Board Partition Wall:
▪ The wall must be installed as per the details contained in our Protecta FR Board Partition Wall Technical Data Sheet and ETA 23/0496.

Limiting Dimensions

The system is tested and assessed to close maximum 25mm airgaps between moisture membranes and roofing tiles

Product Data Sheets Links

Product Data Sheet 

Safety Data Sheet